Apparatus for boiling milk.



Patented Oct. 24, I899. m. r. KROGH.

MARIUS FREDERIK KROGH, OF ROTHENKRUG, GERMANY.

APPARATUS FOR BOILING MILK.

SPECIFICATION forming part of Letters Patent No. 635,692, dated October24, 1899.

Application filed February 18, 1899. Serial Non 705,969. (No model.)

To (0Z5 whom it may concern.-

Be it known that I, MARIUS FREDERIK KROGH, manufacturer, a subject ofthe Eur peror of Germany, residing at Rothenkrug, in the Kingdom ofPrussia and Empire of Germany, have invented certain new and usefulImprovements in Apparatus for Boiling Milk, of which the following is afull, clear, and exact description.

This invention relates to apparatus for boiling milk to prevent theboiling over of the latter. This apparatus has the advantages of greatconvenience in manipulation and cheapness as compared with other devices(1 esigned for the same purpose.

In order that this invention may be the better understood, I now proceedto describe the same with reference to the accompanying drawings and tothe letters marked thereon.

Like letters refer to like parts in both figures.

Figure 1 is a vertical section through a vessel provided with my device,and Fig. 2 is a partial plan thereof.

The inner side of the vessel g, in which the milk is boiled, must besmooth either entirely or for the greater part thereof, so that apiston-like partition 11. can smoothly move up and down therein. Thepartition n has holes h. A truncated funnel r rises from the middle ofthe cylinder. The tunnel r narrows upward and is open at top and bottomto allow the milk to ascend therein and overflow at the top if it shouldrise too much. The milk which has overflowed returns to the lower partof the Vessel g through the perforations h in the partition. The milkreturns to the lower part of the vessel 9 bya very flat conical funnelor tray u, arranged below the partition n as a baffle-plate under theholes to prevent the rising milk from conflicting with the falling milk,and this tray is easily removed-and is provided with a handle I). Themilk flows down on this funnel or tray a and collects in the middle,whence it returns over the outer edge into the lower part of the vesselg. The central position of the tray or funnel u is insured by theupright rim '5, provided on it, fitting into the central orifice of thepartition.

The action of this apparatus is found to be excellent, one of theprincipal features being that the device can rise and fall in the vesselg according as to whether the milk boils more or less. When inserted,the device sinks directly onto the level of the milk and, yieldinggradually to the pressure of the boiling milk, prevents the boiling overof the latter over the rim of the vessel g.

Having now particularly described and as certained the nature of thisinvention and in what manner the same is to be performed, I declare thatwhat I claim is Apparatus to prevent the boiling over of milk consistingof a perforated piston-like partition adapted to smoothly rise and fallon the inside of the boiling vessel, a truncated upper funnel narrowingupward open at top and bottom, and of a flat conical lower funnel ortray shelving downward, in order that the milk rising in and overflowingthe truncated funnel may return into the lower part of the boilingvessel through the perforated partition and shelving-funnel the wholedevice resting upon and rising with the milk substantially as described.

In witness whereof I subscribe my signature in presence of twowitnesses.

' MARIUS FREDERIK KROGI-I.

Witnesses:

F. ROJIKL, H. A. MoLLER.

